Available in versions: Dev (3.17) | Latest (3.16)

ST_Within

Applies to ❌ Open Source Edition   ✅ Express Edition   ✅ Professional Edition   ✅ Enterprise Edition

This predicate checks if one geometry is within another. This is the inverse of ST_Contains. For example:

create.select(
  field(stWithin(
    stGeomFromText("POINT (-2 0)"),
    stGeomFromText("POLYGON ((-3 -1, -1 -1, -1 1, -3 1, -3 -1))") 
  )),
  field(stWithin(
    stGeomFromText("POINT (4 0)"),
    stGeomFromText("POLYGON ((3 -1, 1 -1, 1 1, 3 1, 3 -1))") 
  ))
).fetch();

The result being, for example

+-----------+-----------+
| ST_Within | ST_Within |
+-----------+-----------+
| true      | false     |
+-----------+-----------+

Or, visually:










Dialect support

This example using jOOQ:

stWithin(geometry1, geometry2)

Translates to the following dialect specific expressions:

-- AURORA_MYSQL, AURORA_POSTGRES, COCKROACHDB, MARIADB, MYSQL, POSTGRES, REDSHIFT
st_within(geometry1, geometry2)

-- ORACLE
((sdo_inside(geometry1, geometry2) = 'TRUE'))

-- SQLSERVER
geometry1.STWithin(geometry2) = 1

-- ACCESS, ASE, BIGQUERY, DB2, DERBY, EXASOL, FIREBIRD, H2, HANA, HSQLDB, INFORMIX, MEMSQL, SNOWFLAKE, SQLDATAWAREHOUSE, 
-- SQLITE, SYBASE, TERADATA, VERTICA, YUGABYTEDB
/* UNSUPPORTED */

(These are currently generated with jOOQ 3.17, see #10141), or translate your own on our website

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